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Looking back from 2020, how cannabis use and related behaviours changed in Canada
Open accessAbstract
The primary objective of this study is to update information to reflect changes in self-reported cannabis consumption and related behaviours, as well as examine how methods of consumption and products have been changing between 2018 and 2020, and particularly since the latest 2019 Cannabis Act modifications.
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In the NCS, the percentage of cannabis users who were daily/near daily users did not significantly increase over the 3 years (40, 36 and 40%).
“The percentage of cannabis users who were daily/near daily users did not significantly increase over the 3 years (40, 36 and 40%).”
From The implementation and public health impacts of cannabis legalization in Canada: a systematic review (2023) · cites this paper as [16]
The Results report that 7.9% of Canadians used cannabis daily or almost daily in 2020, while 20.0% used cannabis at all—consistent with about 40% of users. Our copy does not give the claimed 2018 and 2019 percentages among users or establish that the change across the three surveys was not statistically significant; the reported increase in daily use concerns Canadians overall, a different denominator. (LLM, conf=0.82)
Experimental — accuracy not yet measuredThere was more consistent survey evidence that the prevalence of past-year cannabis use has increased since legalization among Canadian adults over the age of 25 years.
“There was more consistent survey evidence that the prevalence of past‐year cannabis use has increased since legalization among Canadian adults over the age of 25 years [10, 12, 16].”
From The implementation and public health impacts of cannabis legalization in Canada: a systematic review (2023) · cites this paper as [16]
The Results report that past-three-month cannabis use tended to rise from 2018 to 2020 among Canadians aged 25 and older, consistently for those aged 25 to 44. The paper does not establish the claimed increase in past-year use, and it does not describe the trend as consistent across all adults over 25. (LLM, conf=0.88)
Experimental — accuracy not yet measuredIn the NCS, the estimated prevalence of cannabis use among people under the legal age to purchase cannabis fluctuated (20% in 2018, 10% in 2019 and 19% in 2020) but these estimates did not differ significantly.
“The estimated prevalence of use among people under the legal age to purchase cannabis [15, 16, 17] fluctuated (20% in 2018, 10% in 2019 and 19% in 2020) but these estimates did not differ significantly, possibly because of the small sample sizes in these age groups.”
From The implementation and public health impacts of cannabis legalization in Canada: a systematic review (2023) · cites this paper as [16]
The Results report that 19.2% of 15- to 17-year-olds used cannabis in the past three months in 2020, supporting the rounded 2020 estimate. Our copy does not give the claimed 2018 and 2019 estimates or say whether differences for this age group were statistically significant; its unchanged-rate finding concerns 18- to 24-year-olds instead. It also does not link the claimed lack of significance to small sample sizes. (LLM, conf=0.84)
Experimental — accuracy not yet measured
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Metadata
- Authors
- Canada, S.
- Affiliations
- Statistics Canada (CA)
- Corresponding author
- Statistics Canada
- Venue
- Government of Canada
- Publisher
- Government of Canada
- Published
- 2021
- Volume
- 32
- Issue
- 4
- Pages
- 3-14
- OpenAlex
- W3155085464
- Cited by
- 82
- References
- 0
- Citations by year
- 2026: 4 · 2025: 5 · 2024: 20 · 2023: 19 · 2022: 27 · 2021: 7
- FWCI
- 10.70
- Type
- journal article
- Language
- en
- Open access
- green
- doi.org
- Locations
- PubMed (publishedVersion)
- Health reports
- Statistics Canada Dissemination
- Topics
- Health Sciences › Medicine › Pharmacology (medical) › Cannabis and Cannabinoid Research
- Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Smoking Behavior and Cessation
- Keywords
- cannabis legalization, cannabis use trends, daily cannabis use, cannabis consumption methods, cannabis products, edibles, COVID-19 pandemic, Canadian cannabis policy
- MeSH terms
- COVID-19, Adult, Canada, Cannabis, Female, Humans, Legislation, Drug, Male, Marijuana Smoking, Surveys and Questionnaires
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